Indiana CCA Conference 2018 Presentation



Crop Management
Tue, Dec 18, 2018
10:00 AM to 10:50 AM


Crop Management
Tue, Dec 18, 2018
3:00 PM to 3:50 PM


Test your knowledge of common and uncommon corn field problems based on images, background details, diagnostic evidence, circumstantial evidence, plant physiology, and causal agents.

Bob Nielsen
Professor of Agronomy
Purdue University
West Lafayette, IN 47907
I am a Professor of Agronomy at Purdue University with major responsibilities for Extension education in corn management systems for the state of Indiana. Originally from Nebraska, I joined the Agronomy staff at Purdue in 1982 after obtaining M.S. and Ph.D. degrees from the University of Minnesota. I am actively involved with Purdue's Crop Diagnostic Training Center, a hands-on educational facility located at the Purdue Agronomy Farm. One of my major Extension activities is the development and maintenance of Web-based corn information sites. My two most popular Web sites are the Corn Growers' Guidebook ( and the Chat 'n Chew Cafe ( My current field research revolves around corn responses to plant population, nitrogen rate & timing, and starter fertilizer rates & placement.